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Cargo helicopter assembly
US 2,721,044 A
Filed
: 12/18/1952
Issued
: 10/18/1955
Est. Priority Date
: 12/18/1952
Status: Expired due to Term
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Current Assignee
Raymond A. Young
Original Assignee
Raymond A. Young
Inventors
Young, Raymond A.
Application Number
US03/326,803
Time in Patent Office
1,034 Days
Field of Search
US Class Current
244/2
CPC Class Codes
B64C 27/04
Helicopters
B64C 37/02
Flying units formed by sepa...
B64D 1/22
Taking-up articles from ear...
B66C 1/10
by mechanical means
B66F 19/00
Hoisting, lifting, hauling ...
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